Showing 41 - 60 results of 1,742 for search '"coal seams"', query time: 2.27s Refine Results
  1. 41
  2. 42
    by Jian Cao, Qingxiang Huang
    Published 2021-01-01
    ...In order to realize roof control of shallow coal seam group mining in Western China, combining...
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  3. 43
  4. 44
    by Yang Manzheng, Li Bingrui, Li Shubo
    Published 2019-01-01
    ...In order to achieve rapid determination of coal seam permeability, the calculation method of coal...
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  5. 45
    ...The augering mining of thin and very thin coal seams has been proposed for using the efficiency...
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  6. 46
  7. 47
    by Nikodem Szlązak, Dariusz Obracaj, Marek Korzec
    Published 2021-02-01
    ...The determination of natural gas content in coal seams is essential to safe mining activities...
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  8. 48
    by Zberovskyi Vasyl, Bubnova Olena, Babii Kateryna
    Published 2018-01-01
    ...The analysis of efficiency decline of methods for hydraulic influence on outburst-prone coal seams...
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  9. 49
    by Qingsong Li, Xin He, Jiahao Wu, Shu Ma
    Published 2018-09-01
    ..., and physical properties of coal of 386 mines and 761 sets of coal seams in Guizhou are also statistically...
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  10. 50
  11. 51
    by Yang Hao, Yu Wu, Xianbiao Mao, Pan Li, Liqiang Zhang, Jing Tao
    Published 2018-01-01
    ...In order to improve the permeability of soft coal seams with low intensity and permeability...
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  12. 52
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  15. 55
    by Justyna Auguścik-Górajek, Marek Nieć
    Published 2020-10-01
    ... assessment of mercury content in coal seams indicates that it varies considerably between and within them...
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  16. 56
    ... accurately. In this study, a numerical calculation model for the rapid estimation of coal seam gas content...
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  17. 57
    by Aitao Zhou, Kai Wang, Lingpeng Fan, T.A. Kiryaeva
    Published 2017-07-01
    ...A better understanding of gas-solid coupling laws for deep, gassy coal seams is vital...
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  18. 58
    by Peng Xu, Han-qiao Xiong, Xiao-lin Pu, Ju-quan Liu, Xing Liu
    Published 2015-01-01
    ...Traditional shallow coal seam uses clean water, solid-free system, and foam system as drilling...
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  19. 59
    by Xiaomeng Li, Zhaohui Wang, Jinwang Zhang
    Published 2017-03-01
    ... on longwall top-coal caving faces in steeply inclined coal seams, the stability of the roof structure...
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  20. 60
    by Moshood Onifade, Bekir Genc, Samson Bada
    Published 2020-09-01
    .... The spontaneous combustion liability of these samples collected between coal seams (above and below) were...
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